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0. L. KNIGHT.- CUTTER KNIFE FOR EXGELSIOR MACHINES.

Patented May 6, 1884.

Willi Nl'IE rates cnAnLns llama-111,

or OQINGINNATI, onro.

CUTTER-KNIFE FOR EXOELSlOR-MACHINES.

SPECIFICATION forming part of Letters Patent No. 298,211, dated May 6, 1884.

Application filed March 6, 1884.

To all whom it may concern.-

Be it known that I, CHARLES L. KNIeI-Ir, a citizen of the United States, and a resident of Jincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Cutter-Knives for Use in Machines for Manufacturing Excelsior, of which the following is a specification.

My invention relates to an improvement in cutter-knives for use more particularly in machines for manufacturing whatis known as excelsiorf and the object of my invention is to provide, in combination with the ordinarybeveled-ed ge cutter-blade, a blade having a serrated or toothec sticking-edge, both blades being adjustably secured together so that the cutting-edge of one is brought into immediate contact with the toothed edge of the other, but slightly in rear of the points of the teeth, for imparting a curly character to the material produced.

Another object of my invention is to provide the sticker-blade with sharp pointed teeth, which enter the face of the block of wood, separating and guiding fibers of it to the cutter-blade, and the beveled face of said sticker-blade with channels or grooves, which are arranged at equal distances apart intermediate the teeth, and run rearwardly therefrom, to determine the grade or texture of the eXcelsior, and serve as guides whereby the teeth can be properly sharpened when worn.

In the accompanying drawings, Figure 1 is aperspective view of the cutter-knife embodying my invention, showing the bottom side up. Fig. 2 is a detail plan View of the inner face of the cutter-blade. Fig. 3 is a detail plan View of the sticker-blade; and Fig. a is a longitudinal section on linex a", Fig. 1,; showing the two blades adj ustablyseeured together in their cutting position, but inverted. A represents thecutter-blade, cbustrncted, 1n the usual manner, with a beveled cuttingedge, a, and provided with slots B B, by WhlCh to adjustably secure it to the cutter-head as customary in machines for manufacturing celsior.

represents a sticker blade, also provlded with slots 0 0, similar to slots B in the cutter-blade, and for the same purpose, the bolts for securing the knife upon the cutter- (No model.)

out on the edge of said beveled end 0.

Grooves 0 are cut in blade 0 intermediate the teeth E, and run rearwardly therefrom slightly beyond the bevel C of the blade. Teeth E are preferably sharpened to a point, as shown, and when the two blades are secured together these teeth project slightly beyond the euttin edge of knife A, so as to enter or stick into the fr'ce of the block from which the excelsior is made, and guide the material to the said cutting-edge. The close contact of the cutting and sticking edges of the blades A and 0 causes the material. cut from. the face of the block to curl into short helices under the grooved face of blade 0, which is the character most desired to be imparted to the material, as it gives it great elasticity, which better adapts it to cushioning and packing purposes.

When the knives become worn in use, they can readily be detached and their beveled edges ground and the sticking-teeth E sharpened. The width of the channels or spaces 0 between the teeth determines the grade or texture of the material-the narrower the groove the finer the grade, and the wider the' groove the coarser the grade. Grooves 0 also form guides by which to properly sharpen the teeth. When sharpening the teeth, the beveled er id of blade 0 is ground, andthe grooves ov maybe out deeper, so as to bring the teeth to a sharp point.

1. A; cutter-knife for an eXeelsior-machine having abeveled-edge cutter-blade, A, in combination with a blade, 0, provided with a toothed and channeled sticker edge, both blades being secured together so that the points of the toothed edge of one will project slightly beyond the cutting-edge of the other, substantially as and for the purpose specified.

2. In an excelsior machine, the stickerblade 0, having sharp-pointed teeth E, which Intestimony whereof I have hereunto set my enter the wood to separate and guide fibers of hand. it to the cutter-blade A, and aseries of grooves,

0, along its beveled face 0, to determine the CHARLES KNIGHT 5 grade of material cut, and to serve as guides Vitnesses:

for properlysharpening the teeth,substantiully J OHN E. J ONES,

as herein set forth. J om: DE ROSE. 

